This is a method for use in a teleconference that troubleshoots echo
problems. After receiving a code to begin the troubleshooting process,
all legs of the teleconference are muted except a test leg. That test leg
is evaluated for echo. The process is repeated for each of the legs of
the teleconference. After automatically measuring echo on all legs,
results are reported to a moderator or host, who can take action such as
muting all legs with echo, or discussing remedial action with each
participant on a leg with echo.